Let x0 of type ι → ι → ι → ι → ι → ι → ι be given.
Let x1 of type ι → ι → ι → ι → ι → ι → ι be given.
Apply unknownprop_1df6cb25245842ac80f846f984ad1ab224979cc48aebddb9e27917721a4b0bdb with
x0,
λ x2 x3 : ι → ι → ι → ι → ι → ι → ι . x2 = x1 leaving 2 subgoals.
The subproof is completed by applying H0.
Apply H2 with
λ x2 x3 . nth_6_tuple x3 = x1.
Apply unknownprop_1df6cb25245842ac80f846f984ad1ab224979cc48aebddb9e27917721a4b0bdb with
x1.
The subproof is completed by applying H1.